US5466433A - Polyiodinated aroyloxy esters - Google Patents
Polyiodinated aroyloxy esters Download PDFInfo
- Publication number
- US5466433A US5466433A US08/261,794 US26179494A US5466433A US 5466433 A US5466433 A US 5466433A US 26179494 A US26179494 A US 26179494A US 5466433 A US5466433 A US 5466433A
- Authority
- US
- United States
- Prior art keywords
- alkyl
- aryl
- aralkyl
- compound
- cycloalkyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/04—X-ray contrast preparations
- A61K49/0433—X-ray contrast preparations containing an organic halogenated X-ray contrast-enhancing agent
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/45—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups
- C07C233/53—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
- C07C233/54—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of a saturated carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/88—Carboxylic acid amides having nitrogen atoms of carboxamide groups bound to an acyclic carbon atom and to a carbon atom of a six-membered aromatic ring wherein at least one ortho-hydrogen atom has been replaced
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/90—Carboxylic acid amides having nitrogen atoms of carboxamide groups further acylated
- C07C233/91—Carboxylic acid amides having nitrogen atoms of carboxamide groups further acylated with carbon atoms of the carboxamide groups bound to acyclic carbon atoms
Definitions
- This invention relates to polyiodinated aroyloxy esters which are particularly useful as contrast agents for x-ray imaging.
- X-ray imaging is a well known and extremely valuable tool for the early detection and diagnosis of various disease states in the human body.
- the use of contrast agents for image enhancement in medical x-ray imaging procedures is widespread.
- An excellent background on iodinated and other contrast agents for medical imaging is provided by D.P. Swanson et al, Pharmaceuticals in Medical Imaging, 1990, MacMillan Publishing Company.
- U.S. Pat. No. 3,097,228 describes derivatives of 2,4,6-triiodobenzoyloxyalkanoic acids having the structure ##STR2## wherein R 1 is H or lower alkyl; R 2 is H or lower-alkanoyl; and R 3 is H or lower alkanoylamino and R 4 is lower alkyl.
- U.S. Pat. No. 3,144,479 describes iodinated benzoic acid esters having the formula ##STR3## wherein X is an iodine atom or an amino group and R is selected from H, alkyl, alkoxyalkyl, i.e., --CH 2 ) m --O--R", wherein R" is alkyl and m is 1 or 2, phenyl and a particular iodinated aromatic group.
- Obendorf (Chem. Abstract 57:4603i) discloses the compound ##STR4## However, this compound has an unacceptably low melting point to be suitably formulated in nanoparticulate x-ray contrast compositions.
- EP-A 498,482 describes nanoparticulate x-ray contrast compositions which have proven to be extremely useful in medical imaging. However, particulate contrast agents in certain in vivo applications can exhibit less than fully satisfactory solubility profiles and/or enzymatic degradation, e.g., in plasma and blood.
- Z--COO) m is the residue of a polyiodinated aromatic acid
- n 1, 2, 3 or 4;
- n is an integer from 1 to 20;
- R 1 and R 2 are independently H, alkyl, fluoroalkyl, cycloalkyl, aryl, aralkyl, alkoxy or aryloxy;
- R 3 and R 4 represents individual COO units attached to Z are independently H, alkyl, fluoroalkyl, cycloalkyl, aryl, aralkyl, alkoxy, aryloxy, halogen, hydroxy or acylamino;
- R 5 is H, alkyl, cycloalkyl, aryl, aralkyl, alkoxyalkyl or acetamidoalkyl.
- This invention further provides an x-ray contrast composition
- an x-ray contrast composition comprising the above-described compound and a method for medical x-ray diagnostic imaging which comprises administering to the body of a test subject an effective contrast producing amount of the above-described x-ray contrast composition.
- Z--COO) m is the residue of a polyiodinated aromatic mono- or poly-acid.
- m is 1, 2, 3 or 4.
- m is 1 or 2.
- the iodinated aromatic acid can comprise two, three or more iodine atoms per molecule.
- Preferred species contain at least two iodine atoms per aromatic ring.
- the iodinated compounds can contain substituents which do not deleteriously effect the contrast enhancing capability of the compound.
- Z--COO) m is the residue of a substituted triiodobenzoic acid such as an acyl, carbamyl, and/or acylamino substituted triiodobenzoic acid.
- Z--COO) m is the residue of a polyiodinated aromatic acid such as diatrizoic acid, metrizoic acid, urokonic acid, 2,4,6-triiodo-5-acetylamino-isophthalic acid or iodipamide.
- n is an integer from 1 to 20. In certain preferred embodiments, n is an integer from 4 to 20.
- R 3 and R 4 independently represent a substituent as defined for R 1 above; halogen, such as chlorine, bromine or iodine; hydroxy; or acylamino, i.e , a ##STR6## group wherein R 6 and R 7 are independently H, alkyl, aryl, aralkyl or alkoxy as defined for R 1 above, acetamidoalkyl, i.e., ##STR7## wherein alkyl is as defined for R 1 above, --COO--alkyl, the alkyl portion of which is as defined for R 1 above, cyano and the like, or R 6 and R 7 taken together with the nitrogen atom to which they are attached, represent a 4-7 membered saturated or unsaturated nitrogen containing ring such as piperidyl, piperizinyl, pyrrolidinyl, and the like.
- reactive substituents such as halogen, hydroxy, and acylamino are not preferred on carbon atoms adjacent to the este
- R 5 represents H, alkyl as defined for R 1 above; cycloalkyl as defined for R 1 above; aryl as defined for R 1 above, aralkyl as defined for R 1 above; alkoxy, as defined for R 1 above; aryloxy, as defined for R 1 above; alkoxyalkyl, the alkyl and alkoxy portions of which are as defined for R 1 above; or acetamidoalkyl; i.e., ##STR8## wherein alkyl is as defined for R 1 above.
- the compounds of this invention have the structure ##STR9##
- R 1 , R 2 , R 3 , R 4 , R 5 and n are as defined above;
- R 8 and R 9 are independently alkyl, as defined for R 1 above, cycloalkyl, as defined for R 1 above, aryl, as defined for R 1 above, or aralkyl, as defined for R 1 above;
- R 10 and R 11 are independently H or --COR 8 , wherein R 8 is as defined above.
- the compounds of this invention have the structure ##STR10## wherein z is an integer from 1 to 10, and R 1 , R 2 , R 3 , R 4 , R 5 , R 8 , R 9 , R 10 , R 11 , q and n are as defined above.
- alkyl, cycloalkyl, aryl, aralkyl and alkoxy groups in structure I above can be unsubstituted or substituted with various substituents which do not adversely affect the stability or efficacy of the compounds as x-ray contrast agents such as alkyl, cycloalkyl, aryl, aralkyl, alkoxy, hydroxy, acyloxy, halogen, such as chlorine, bromine and iodine, acylamino, carboalkoxy, carbamyl and the like.
- halogen such as chlorine, bromine and iodine, acylamino, carboalkoxy, carbamyl and the like.
- reactive substituents such as halogen are not preferred on the carbon atoms, if present, adjacent to the ester group.
- the compounds of this invention can be prepared by contacting the carboxylate of an iodinated aromatic acid with a functionalized ester having the formula ##STR11## wherein X is a leaving group and n and R 1 -R 5 are as defined above, in a suitable solvent.
- Suitable leaving groups include halogen, such as Br, I and Cl, sulfonyloxy, such as methanesulfonyloxy and toluenesulfonyloxy.
- Suitable solvents include dimethylformamide.
- the carboxylates of iodinated aromatic acids and functionalized esters useful as the starting materials in the preparation of the compounds of this invention are known compounds and/or can be prepared by techniques known in the art.
- suitable esters include commercially available bromoesters and chloroesters derivatives as exemplified below.
- a general reaction scheme is as follows: ##STR12##
- the reaction can take place at various temperatures ranging between -78° C. and 100° C., and preferably -40° C. and 50° C. For convenience, the reaction can take place at ambient pressure, however, higher and lower pressures are contemplated.
- reaction can take place in any suitable solvent.
- suitable solvents include N,N-dimethylformamide and dimethylsulfoxide.
- a particularly preferred compound of this invention is WIN 69979 having the structure; ##STR13##
- the compounds of this invention When used as an x-ray contrast agent, the compounds of this invention preferably comprise at least about 40%, more preferably at least 45% iodine by weight.
- the compounds of this invention can be formulated into particulate x-ray contrast compositions, preferably nanoparticulate x-ray contrast compositions, as described in commonly-owned EP-A 498,482.
- Preferred compounds for this application have a melting point greater than 150° C.
- Such nanoparticulate compositions can be prepared by dispersing the compounds of the invention in a liquid dispersion medium, and wet grinding the compound in the presence of rigid grinding media and a surface modifier to form the nanoparticles.
- the surface modifier can be contacted with the compound after attrition.
- Preferred surface modifiers include nonionic surfactants.
- the surface modifier is a high molecular weight nonionic surfactant.
- Preferred surfactants include poloxamers such as Pluronic® F68 and F108, which are block copolymers of ethylene oxide and propylene oxide, poloxamines, such as Tetronic® 908 (also known as Poloxamine 908), which is a tetrafunctional block copolymer derived from sequential addition of propylene oxide and ethylene oxide to ethylenediamine, and dialkyl esters of sodium sulfosuccinic acid, such as dioctylsulfosuccinate sodium (DOSS).
- the concentrations of the surface modifier can vary from about 0.1-75%, preferably 1-60%, and more preferably 10-30% by weight based on the total combined weight of the contrast agent and surface modifier.
- the x-ray contrast composition in the form of surface modified nanoparticles can be associated with a cloud point modifier to further enhance stability during steam heat autoclaving, i.e., the cloud point modifier can reduce particle aggregation during heat sterilization.
- Preferred cloud point modifiers include nonionic cloud point modifiers, such as polyethylene glycols such as PEG 400, propylene glycol, ethanol, hydroxypropylcyclo-dextrin, and glycerol; ionic cloud point modifiers, such as those described in U.S. Pat. No.
- 5,298,262 including dialkylesters of sodium sulfosuccinic acid such as the dioctylester of sodium sulfosuccinic acid (DOSS); and charged phospholipids, such as diacylphosphatidyl glycerol and dimyristoylphosphatidyl glycerol.
- the cloud point modifier can be present in an amount of 0.005-50%, preferably 0.01-30% and more preferably 0.05-20% by weight based on the total weight of the x-ray contrast composition.
- the x-ray contrast compositions of this invention comprise the above-described compounds, preferably in the form of particles, and a physiologically acceptable carrier therefor.
- the particles can be dispersed in an aqueous liquid which serves as the carrier for the x-ray contrast agent.
- suitable carriers include liquid carriers such as mixed aqueous and nonaqueous solvents, such as alcohol; gels; gases, such as air; and powders.
- the x-ray contrast composition can comprise from about 1-99.9, preferably 2-45 and more preferably 10-25% by weight of the above-described particles, the remainder of the composition being the carrier, additives and the like. Compositions up to about 100% by weight of the particles are contemplated when the composition is in a lyophilized form.
- the dose of the contrast agent to be administered can be selected according to techniques known to those skilled in the art such that a sufficient contrast enhancing effect is obtained.
- Typical doses can range from 20 to 350 mg of iodine per kilogram of body weight of the subject for many imaging applications.
- lower doses e.g., 0.5-20 mg I/kg, can be effective.
- the dose can range from 50 to 350 mg of iodine per kilogram of body weight.
- the x-ray contrast composition can contain one or more conventional additives used to control and/or enhance the properties of the x-ray contrast agent.
- thickening agents such as dextran or human serum albumin, buffers, viscosity regulating agents, suspending agents, peptizing agents, anti-clotting agents, mixing agents, and other drugs and the like can be added.
- a partial listing of certain specific additives includes gums, sugars such as dextran, human serum albumin, gelatin, sodium alginate, agar, dextrin, pectin and sodium carboxymethyl cellulose.
- Such additives, surface active agents, preservatives and the like can be incorporated into the compositions of the invention.
- a method for diagnostic imaging for use in medical procedures in accordance with this invention comprises administering to the body of a test subject in need of an x-ray an effective contrast producing amount of the above-described x-ray contrast composition.
- the test subject can include mammalian species such as rabbits, dogs, cats, monkeys, sheep, pigs, horses, bovine animals and the like.
- the body containing the administered contrast agent is exposed to x-rays to produce an x-ray image pattern corresponding to the presence of the contrast agent.
- the image pattern can then be visualized.
- any x-ray visualization technique preferably, a high contrast technique such as computed tomography, can be applied in a conventional manner.
- the image pattern can be observed directly on an x-ray sensitive phosphor screen-silver halide photographic film combination.
- compositions of this invention can be administered by a variety of routes depending on the type of procedure and the anatomical orientation of the tissue being examined. Suitable administration routes include intravascular (arterial or venous) administration by catheter, intravenous injection, rectal administration, subcutaneous administration, intramuscular administration, intralesional administration, intrathecal administration, intracisternal administration, oral administration, administration via inhalation, administration directly into a body cavity, e.g., arthrography, and the like.
- intravascular arterial or venous
- rectal administration subcutaneous administration
- intramuscular administration intralesional administration
- intrathecal administration intracisternal administration
- oral administration administration via inhalation
- administration directly into a body cavity e.g., arthrography, and the like.
- the x-ray contrast compositions of this invention are also expected to be useful as contrast agents for any organ or body cavity.
- the compositions of this invention are expected to be useful as angiographic contrast media, urographic contrast media, myelographic contrast media, gastrointestinal contrast media, cholecystographic and cholangiographic contrast media, arthrographic contrast media, hysterosalpingographic contrast media, oral contrast media and bronchographic contrast media.
- Compound WIN 12901 corresponds to the compound of GB 866,184, formula C, wherein R 1 is H, R 2 is acetyl, R 3 is acetylamino and R 4 is ethyl.
- Such acids and salts thereof are useful as wetting agents and/or as surface modifiers in x-ray contrast compositions, particularly in nanoparticulate x-ray contrast compositions.
Abstract
Description
__________________________________________________________________________ WIN Z n m R.sup.5 __________________________________________________________________________ 67722 ##STR14## 4 1 C.sub.2 H.sub.5 67954 " 3 1 C.sub.2 H.sub.5 67995 " 4 1 CH(CH.sub.3).sub.2 68039 " 4 1 CH.sub.2 OCOC(CH.sub.3).sub.3 68061 " 2 1 C.sub.2 H.sub.5 68060 " 2 1 CH.sub.2C.sub.6 H.sub.5 68136 " 5 1 C.sub.2 H.sub.5 68166 " 6 1 C.sub.2 H.sub.5 70467 " 4 1 CH.sub.3 71300 " 4 1 CH.sub.2 CH(CH.sub.3).sub.2 72313 " 4 1 C(CH.sub.3).sub.3 68767 ##STR15## 4 1 C.sub.2 H.sub.5 68888 " 3 1 C.sub.2 H.sub.5 68384 ##STR16## 4 1 C.sub.2 H.sub.5 68038 ##STR17## 4 1 C.sub.2 H.sub.5 22256 ##STR18## 2 2 C.sub.2 H.sub.5 69732 " 4 2 C.sub.2 H.sub.5 69943 ##STR19## 2 2 C.sub.2 H.sub.5 69944 " 3 2 C.sub.2 H.sub.5 69979 " 4 2 C.sub.2 H.sub.5 __________________________________________________________________________
______________________________________ Solubility Esterase WIN μg/ml Stabilty ______________________________________ 12901 18 17.8 68061 86 13.3 67954 16 3.2 67722 2 2.7 68136 1 0.2 68166 1 0.35 ______________________________________
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/261,794 US5466433A (en) | 1992-12-16 | 1994-06-20 | Polyiodinated aroyloxy esters |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/990,987 US5322679A (en) | 1992-12-16 | 1992-12-16 | Iodinated aroyloxy esters |
US08/261,794 US5466433A (en) | 1992-12-16 | 1994-06-20 | Polyiodinated aroyloxy esters |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/990,987 Continuation-In-Part US5322679A (en) | 1992-12-16 | 1992-12-16 | Iodinated aroyloxy esters |
Publications (1)
Publication Number | Publication Date |
---|---|
US5466433A true US5466433A (en) | 1995-11-14 |
Family
ID=25536725
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/990,987 Expired - Lifetime US5322679A (en) | 1992-12-16 | 1992-12-16 | Iodinated aroyloxy esters |
US08/261,794 Expired - Lifetime US5466433A (en) | 1992-12-16 | 1994-06-20 | Polyiodinated aroyloxy esters |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/990,987 Expired - Lifetime US5322679A (en) | 1992-12-16 | 1992-12-16 | Iodinated aroyloxy esters |
Country Status (16)
Country | Link |
---|---|
US (2) | US5322679A (en) |
EP (1) | EP0603922B1 (en) |
JP (1) | JPH06199754A (en) |
KR (1) | KR940014293A (en) |
AT (1) | ATE155772T1 (en) |
AU (1) | AU666220B2 (en) |
CA (1) | CA2106413A1 (en) |
CZ (1) | CZ274893A3 (en) |
DE (1) | DE69312446D1 (en) |
FI (1) | FI935308A (en) |
HU (1) | HUT65772A (en) |
IL (1) | IL107796A0 (en) |
NO (1) | NO934333L (en) |
NZ (1) | NZ248673A (en) |
PH (1) | PH29958A (en) |
SK (1) | SK142593A3 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US5521218A (en) * | 1995-05-15 | 1996-05-28 | Nanosystems L.L.C. | Nanoparticulate iodipamide derivatives for use as x-ray contrast agents |
US6375986B1 (en) | 2000-09-21 | 2002-04-23 | Elan Pharma International Ltd. | Solid dose nanoparticulate compositions comprising a synergistic combination of a polymeric surface stabilizer and dioctyl sodium sulfosuccinate |
US20030108616A1 (en) * | 2000-09-21 | 2003-06-12 | Elan Pharma International Ltd. | Nanoparticulate compositions comprising copolymers of vinyl pyrrolidone and vinyl acetate as surface stabilizers |
US20030152519A1 (en) * | 2001-11-07 | 2003-08-14 | Reinhard Koenig | Methods for vascular imaging using nanoparticulate contrast agents |
US20040029099A1 (en) * | 2000-09-21 | 2004-02-12 | Elan Pharma International Ltd. | Solid dose nanoparticulate compositions comprising a synergistic combination of a polymeric surface stabilizer and dioctyl sodium sulfosuccinate |
US20040076586A1 (en) * | 2002-03-28 | 2004-04-22 | Reinhard Koening | Compositions and methods for delivering pharmaceutically active agents using nanoparticulates |
US20060193920A1 (en) * | 2000-09-21 | 2006-08-31 | Elan Pharma International Ltd. | Nanoparticulate compositions of mitogen-activated protein (map) kinase inhibitors |
US9320707B2 (en) | 1997-11-17 | 2016-04-26 | Janssen Pharmaceutica, N.V. | Aqueous suspensions of submicron 9-hydroxyrisperidone fatty acid esters |
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Publication number | Priority date | Publication date | Assignee | Title |
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US5330739A (en) * | 1992-12-04 | 1994-07-19 | Sterling Winthrop Inc. | Iodinated benzoyl acetals and ketals for x-ray imaging |
US5346688A (en) * | 1992-12-16 | 1994-09-13 | Sterling Winthrop Inc. | Iodinated wetting agents |
US5322679A (en) * | 1992-12-16 | 1994-06-21 | Sterling Winthrop Inc. | Iodinated aroyloxy esters |
US5316755A (en) * | 1993-02-02 | 1994-05-31 | Sterling Winthrop Inc. | Compositions of iodophenoxy alkanes and iodophenyl ethers for visualization of the gastrointestinal tract |
NO940115D0 (en) * | 1994-01-13 | 1994-01-13 | Nycomed Imaging As | Contrast agents for X-ray and magnetic tomographic imaging |
WO1995022995A1 (en) * | 1994-02-25 | 1995-08-31 | Nycomed Imaging A/S | X-ray contrast compositions containing cellulose derivatives |
US5488133A (en) * | 1994-03-10 | 1996-01-30 | Eastman Kodak Company | Iodinated aroyloxy ketones |
CA2187019A1 (en) * | 1994-04-21 | 1995-11-02 | Stephen B. Ruddy | X-ray contrast compositions containing pharmaceutically acceptable clays |
NL9400762A (en) * | 1994-05-09 | 1995-12-01 | T G Wiersma | Vaginal opaque medium for X-ray diagnostic examinations and method for the preparation thereof |
US5525328A (en) * | 1994-06-24 | 1996-06-11 | Nanosystems L.L.C. | Nanoparticulate diagnostic diatrizoxy ester X-ray contrast agents for blood pool and lymphatic system imaging |
CA2191984A1 (en) * | 1994-06-24 | 1996-01-04 | Eastman Kodak Company | Alpha-(cycloalkyl, aryl and aralkyl)substituted polyiodinated aroyloxy compounds |
JPH10502083A (en) * | 1994-06-24 | 1998-02-24 | ナノシステムズ エル エル シー | 2,4,6-triiodo-5-substituted amino-isophthalic esters useful as X-ray contrast agents for medical diagnostic imaging |
EP0810853B1 (en) * | 1995-02-24 | 2004-08-25 | Elan Pharma International Limited | Aerosols containing nanoparticle dispersions |
US5643552A (en) * | 1995-03-09 | 1997-07-01 | Nanosystems L.L.C. | Nanoparticulate diagnostic mixed carbonic anhydrides as x-ray contrast agents for blood pool and lymphatic system imaging |
US5573750A (en) * | 1995-05-22 | 1996-11-12 | Nanosystems L.L.C. | Diagnostic imaging x-ray contrast agents |
US5834025A (en) | 1995-09-29 | 1998-11-10 | Nanosystems L.L.C. | Reduction of intravenously administered nanoparticulate-formulation-induced adverse physiological reactions |
US7521068B2 (en) | 1998-11-12 | 2009-04-21 | Elan Pharma International Ltd. | Dry powder aerosols of nanoparticulate drugs |
US20040141925A1 (en) * | 1998-11-12 | 2004-07-22 | Elan Pharma International Ltd. | Novel triamcinolone compositions |
US20030129242A1 (en) * | 2002-01-04 | 2003-07-10 | Bosch H. William | Sterile filtered nanoparticulate formulations of budesonide and beclomethasone having tyloxapol as a surface stabilizer |
CN101107021A (en) * | 2004-12-30 | 2008-01-16 | 金文申有限公司 | Combination comprising an agent providing a signal, an implant material and a drug |
JP2008527119A (en) * | 2005-01-13 | 2008-07-24 | シンベンション アーゲー | Composite materials containing carbon nanoparticles |
BRPI0606486A2 (en) * | 2005-01-24 | 2009-06-30 | Cinv Ag | metal-containing composite materials |
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US20090081297A1 (en) * | 2005-04-27 | 2009-03-26 | Cook Robert O | Use of surface tension reducing agents in aerosol formulations |
AU2006265196A1 (en) * | 2005-07-01 | 2007-01-11 | Cinvention Ag | Medical devices comprising a reticulated composite material |
EP1902087A1 (en) * | 2005-07-01 | 2008-03-26 | Cinvention Ag | Process for the production of porous reticulated composite materials |
KR20080063408A (en) * | 2005-10-18 | 2008-07-03 | 신벤션 아게 | Thermoset particles and methods for production thereof |
CN101646402A (en) * | 2007-01-19 | 2010-02-10 | 金文申有限公司 | Porous, the non-degradable implant made with powdered moulding |
EP3310786B1 (en) * | 2015-06-16 | 2021-03-03 | Nanophagix LLC | Drug delivery and imaging chemical conjugate, formulations and methods of use thereof |
JP6867639B2 (en) * | 2016-10-11 | 2021-05-12 | 学校法人 聖マリアンナ医科大学 | Combined nonionic iodine contrast agent |
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AU241516A (en) * | 1916-10-26 | 1917-06-05 | Chambers Blagden | An improved toothless castrating tool |
GB866184A (en) * | 1958-06-03 | 1961-04-26 | Sterling Drug Inc | Tri-iodo-benzoic acid derivatives |
US3144479A (en) * | 1958-08-07 | 1964-08-11 | Chemie Linz Ag | New iodine-containing benzoic acid esters |
US3317569A (en) * | 1963-03-01 | 1967-05-02 | Sterling Drug Inc | Esters of monoiodinated benzoyloxyalkanoic acids |
US4924009A (en) * | 1987-06-03 | 1990-05-08 | Bowling Green State University | Xanthene dye complexes |
EP0498482A2 (en) * | 1991-01-25 | 1992-08-12 | NanoSystems L.L.C. | X-ray contrast compositions useful in medical imaging |
US5322679A (en) * | 1992-12-16 | 1994-06-21 | Sterling Winthrop Inc. | Iodinated aroyloxy esters |
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DE1082368B (en) * | 1958-08-11 | 1960-05-25 | Lentia Gmbh | X-ray contrast media |
US3484481A (en) * | 1965-04-09 | 1969-12-16 | Chemie Linz Ag | 3-amino-2,4,6-triiodobenzoic acid derivatives |
GB8900376D0 (en) * | 1989-01-09 | 1989-03-08 | Nycomed As | Iodinated esters |
US5145684A (en) * | 1991-01-25 | 1992-09-08 | Sterling Drug Inc. | Surface modified drug nanoparticles |
US5330739A (en) * | 1992-12-04 | 1994-07-19 | Sterling Winthrop Inc. | Iodinated benzoyl acetals and ketals for x-ray imaging |
US5346688A (en) * | 1992-12-16 | 1994-09-13 | Sterling Winthrop Inc. | Iodinated wetting agents |
-
1992
- 1992-12-16 US US07/990,987 patent/US5322679A/en not_active Expired - Lifetime
-
1993
- 1993-09-15 NZ NZ248673A patent/NZ248673A/en unknown
- 1993-09-15 AU AU47375/93A patent/AU666220B2/en not_active Ceased
- 1993-09-17 CA CA002106413A patent/CA2106413A1/en not_active Abandoned
- 1993-09-21 PH PH46915A patent/PH29958A/en unknown
- 1993-10-14 KR KR1019930021260A patent/KR940014293A/en not_active Application Discontinuation
- 1993-11-11 JP JP5282347A patent/JPH06199754A/en active Pending
- 1993-11-26 AT AT93203301T patent/ATE155772T1/en not_active IP Right Cessation
- 1993-11-26 DE DE69312446T patent/DE69312446D1/en not_active Expired - Lifetime
- 1993-11-26 EP EP93203301A patent/EP0603922B1/en not_active Expired - Lifetime
- 1993-11-29 FI FI935308A patent/FI935308A/en not_active Application Discontinuation
- 1993-11-29 IL IL10779693A patent/IL107796A0/en unknown
- 1993-11-30 NO NO934333A patent/NO934333L/en unknown
- 1993-12-14 CZ CZ932748A patent/CZ274893A3/en unknown
- 1993-12-15 SK SK1425-93A patent/SK142593A3/en unknown
- 1993-12-15 HU HU9303593A patent/HUT65772A/en unknown
-
1994
- 1994-06-20 US US08/261,794 patent/US5466433A/en not_active Expired - Lifetime
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US5521218A (en) * | 1995-05-15 | 1996-05-28 | Nanosystems L.L.C. | Nanoparticulate iodipamide derivatives for use as x-ray contrast agents |
US9320707B2 (en) | 1997-11-17 | 2016-04-26 | Janssen Pharmaceutica, N.V. | Aqueous suspensions of submicron 9-hydroxyrisperidone fatty acid esters |
US6592903B2 (en) | 2000-09-21 | 2003-07-15 | Elan Pharma International Ltd. | Nanoparticulate dispersions comprising a synergistic combination of a polymeric surface stabilizer and dioctyl sodium sulfosuccinate |
US7998507B2 (en) | 2000-09-21 | 2011-08-16 | Elan Pharma International Ltd. | Nanoparticulate compositions of mitogen-activated protein (MAP) kinase inhibitors |
US20030108616A1 (en) * | 2000-09-21 | 2003-06-12 | Elan Pharma International Ltd. | Nanoparticulate compositions comprising copolymers of vinyl pyrrolidone and vinyl acetate as surface stabilizers |
US20040029099A1 (en) * | 2000-09-21 | 2004-02-12 | Elan Pharma International Ltd. | Solid dose nanoparticulate compositions comprising a synergistic combination of a polymeric surface stabilizer and dioctyl sodium sulfosuccinate |
US6375986B1 (en) | 2000-09-21 | 2002-04-23 | Elan Pharma International Ltd. | Solid dose nanoparticulate compositions comprising a synergistic combination of a polymeric surface stabilizer and dioctyl sodium sulfosuccinate |
US6969529B2 (en) | 2000-09-21 | 2005-11-29 | Elan Pharma International Ltd. | Nanoparticulate compositions comprising copolymers of vinyl pyrrolidone and vinyl acetate as surface stabilizers |
US20060193920A1 (en) * | 2000-09-21 | 2006-08-31 | Elan Pharma International Ltd. | Nanoparticulate compositions of mitogen-activated protein (map) kinase inhibitors |
US7198795B2 (en) | 2000-09-21 | 2007-04-03 | Elan Pharma International Ltd. | In vitro methods for evaluating the in vivo effectiveness of dosage forms of microparticulate of nanoparticulate active agent compositions |
US20070110776A1 (en) * | 2000-09-21 | 2007-05-17 | Elan Pharma International Ltd. | In vitro methods for evaluating the in vivo effectivness of dosage forms of microparticulate or nanoparticulate active agent compositions |
US7244451B2 (en) | 2000-09-21 | 2007-07-17 | Elan Pharma International Ltd. | Methods of making nanoparticulate drug compositions comprising copolymers of vinyl pyrrolidone and vinyl acetate as surface stabilizers |
US8309136B2 (en) | 2000-09-21 | 2012-11-13 | Alkermes Pharma Ireland Limited | In vitro methods for evaluating the in vivo effectiveness of dosage forms of microparticulate or nanoparticulate active agent compositions |
US7695739B2 (en) | 2000-09-21 | 2010-04-13 | Elan Pharma International Limited | In vitro methods for evaluating the in vivo effectiveness of dosage forms of microparticulate or nanoparticulate active agent compositions |
US20030152519A1 (en) * | 2001-11-07 | 2003-08-14 | Reinhard Koenig | Methods for vascular imaging using nanoparticulate contrast agents |
US20100055032A1 (en) * | 2001-11-07 | 2010-03-04 | Nanoscan Imaging Llc | Methods for vascular imaging using nanoparticulate contrast agents |
US20040076586A1 (en) * | 2002-03-28 | 2004-04-22 | Reinhard Koening | Compositions and methods for delivering pharmaceutically active agents using nanoparticulates |
Also Published As
Publication number | Publication date |
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IL107796A0 (en) | 1994-02-27 |
FI935308A (en) | 1994-06-17 |
SK142593A3 (en) | 1994-07-06 |
HU9303593D0 (en) | 1994-04-28 |
KR940014293A (en) | 1994-07-18 |
DE69312446D1 (en) | 1997-09-04 |
EP0603922A1 (en) | 1994-06-29 |
NO934333L (en) | 1994-06-17 |
NO934333D0 (en) | 1993-11-30 |
ATE155772T1 (en) | 1997-08-15 |
JPH06199754A (en) | 1994-07-19 |
EP0603922B1 (en) | 1997-07-23 |
CA2106413A1 (en) | 1994-06-17 |
AU4737593A (en) | 1994-06-30 |
HUT65772A (en) | 1994-07-28 |
NZ248673A (en) | 1995-09-26 |
CZ274893A3 (en) | 1994-07-13 |
AU666220B2 (en) | 1996-02-01 |
US5322679A (en) | 1994-06-21 |
FI935308A0 (en) | 1993-11-29 |
PH29958A (en) | 1996-09-16 |
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